▎ 摘　　要

NOVELTY - Silicone rubber sealing ring comprises a sealing ring main body and an antifouling coating layer sprayed on the surface of the sealing ring main body, where the sealing ring main body comprising 55-70 pts. wt. natural rubber, 22-25 pts. wt. fluorine rubber, 42-49 pts. wt. silicone rubber, 1-5 pts. wt. boehmite, 4-8 pts. wt. sulfur, 1-2 pts. wt. benzoic acid tetraethyl ammonium, 17-24 pts. wt. olefin composition, 2-5 pts. wt. aluminum hydroxide, 5-13 pts. wt. tungsten carbide, 1-5 pts. wt. accelerator, 5-9 pts. wt. montmorillonite powder, 1-5 pts. wt. anti-aging agent, and 6-9 pts. wt. hydroxy silicone oil. USE - Used as silicone rubber sealing ring. ADVANTAGE - The ring: has wear-resistant and antifouling; improves the wear resistance of rubber from the base level and abrasion resistance; fills the gap between the rubber; increases the density of the film; improves the mechanical properties including the hardness and breaking strength of the product; sprays with antifouling coating layer; isolates the contact between rubber and dirt by anti-fouling coating layer; and facilitates the separation of stains from the sealing ring. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the silicone rubber sealing ring, comprising (i) adding natural rubber, fluorine rubber and silicone rubber to an internal mixer for mixing for 10-15 minutes, and adding the remaining raw materials for continuously mixing, (ii) completing the mixing, sending the mixed rubber material to an open mill for open mixing and forming, (iii) introducing the formed rubber in a forming mold of a vulcanizing device, curing at 215-270 degrees C for 5 minutes, and demolding, (iv) trimming the vulcanized product to obtain the sealing ring main body, spraying the antifouling coating on the sealing ring body through the atomizing nozzle, and forming an anti-fouling coating layer on the surface of the sealing ring main body, (v) sending the sealed ring main body to a baking machine for baking at 25-32 degrees C, and (vi) completing the baking, and cooling at room temperature.